METHOD AND APPARATUS FOR STRING ACCESS OR PASSAGE THROUGH THE DEFORMED AND DISSIMILAR CONTIGUOUS WALLS OF A WELLBORE |
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| 申请号 | EP13813254 | 申请日 | 2013-07-05 | 公开(公告)号 | EP2875207A4 | 公开(公告)日 | 2016-07-06 |
| 申请人 | TUNGET BRUCE A; | 发明人 | TUNGET BRUCE A; | ||||
| 摘要 | Method and apparatus for providing access to a lower end wellbore through an impasse using an circumferential adaptable apparatus and downhole devices to pilot a tool string through an existing obstructive frictional or restricted passageway with dissimilar well bore walls, wherein piloting a tool string may comprise displacing debris within and/or deforming its proximally circular and/or deformed bores or traversing an obstructive passageway therebetween, and whereby various downhole devices may be incorporated, deployed and oriented relative to a proximal axis or proximally contiguous wall, using the expandable and collapsible members of the present invention engaged about a plurality of shafts, usable to pilot the tool string through a conventional impasse or restriction of said walls of said dissimilar contiguous passageways. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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